Merge pull request #277 from Benappiahpoku/patch-15

Update Question 391 & 396 README.md

README.md

@@ -7076,7 +7076,7 @@
 
 391. ### How do you use javascript libraries in typescript file
 
-     It is known that not all JavaScript libraries or frameworks have TypeScript declaration files. But if you still want to use libraries or frameworks in our TypeScript files without getting compilation errors, the only solution is `declare` keyword along with a variable declaration. For example, let's imagine you have a library called `customLibrary` that doesn’t have a TypeScript declaration and have a namespace called `customLibrary` in the global namespace. You can use this library in typescript code as below,
+     It is known that not all JavaScript libraries or frameworks have TypeScript declaration files. But if you still want to use libraries or frameworks in your TypeScript files without getting compilation errors, the only solution is `declare` keyword along with a variable declaration. For example, let's imagine you have a library called `customLibrary` that doesn’t have a TypeScript declaration and have a namespace called `customLibrary` in the global namespace. You can use this library in typescript code as below,
 
      ```javascript
      declare var customLibrary;
@@ -7133,7 +7133,7 @@
 
      A shim is a library that brings a new API to an older environment, using only the means of that environment. It isn't necessarily restricted to a web application. For example, es5-shim.js is used to emulate ES5 features on older browsers (mainly pre IE9).
      Whereas polyfill is a piece of code (or plugin) that provides the technology that you, the developer, expect the browser to provide natively.
-     In a simple sentence, A polyfill is a shim for a browser API.
+     In a simple sentence, a polyfill is a shim for a browser API.
 
      **[⬆ Back to Top](#table-of-contents)**